[#26] All: Remove V2 from naming

Rename project, namespaces and class names

Signed-off-by: Pavel Gross <p.gross@yadro.com>

src/FrostFS.SDK.Client/Models/Netmap/FrostFsPlacementPolicy.cs

@@ -0,0 +1,89 @@
+
+using System;
+using System.Linq;
+
+using FrostFS.Netmap;
+using FrostFS.SDK.Client;
+
+namespace FrostFS.SDK;
+
+public struct FrostFsPlacementPolicy(bool unique, params FrostFsReplica[] replicas)
+    : IEquatable<FrostFsPlacementPolicy>
+{
+    private PlacementPolicy policy;
+
+    public FrostFsReplica[] Replicas { get; private set; } = replicas;
+    public bool Unique { get; private set; } = unique;
+
+    public override readonly bool Equals(object obj)
+    {
+        if (obj is null)
+            return false;
+
+        var other = (FrostFsPlacementPolicy)obj;
+
+        return Equals(other);
+    }
+
+    public PlacementPolicy GetPolicy()
+    {
+        if (policy == null)
+        {
+            policy = new PlacementPolicy
+            {
+                Filters = { },
+                Selectors = { },
+                Replicas = { },
+                Unique = Unique
+            };
+
+            foreach (var replica in Replicas)
+            {
+                policy.Replicas.Add(replica.ToMessage());
+            }
+        }
+
+        return policy;
+    }
+
+    //public static FrostFsPlacementPolicy ToModel(placementPolicy)
+    //{
+    //    return new FrostFsPlacementPolicy(
+    //        placementPolicy.Unique,
+    //        placementPolicy.Replicas.Select(replica => replica.ToModel()).ToArray()
+    //    );
+    //}
+
+
+    public override readonly int GetHashCode()
+    {
+        return Unique ? 17 : 0 + Replicas.GetHashCode();
+    }
+
+    public static bool operator ==(FrostFsPlacementPolicy left, FrostFsPlacementPolicy right)
+    {
+        return left.Equals(right);
+    }
+
+    public static bool operator !=(FrostFsPlacementPolicy left, FrostFsPlacementPolicy right)
+    {
+        return !(left == right);
+    }
+
+    public readonly bool Equals(FrostFsPlacementPolicy other)
+    {
+        var notEqual = Unique != other.Unique
+         || Replicas.Length != other.Replicas.Length;
+
+        if (notEqual)
+            return false;
+
+        foreach (var replica in Replicas)
+        {
+            if (!other.Replicas.Any(r => r.Equals(replica)))
+                return false;
+        }
+
+        return true;
+    }
+}